Reducing Companion Flange Threaded Body Material Cast Iron Class 125 Pipe Size 6 In. Connection Type Flanged x FNPT Max Pressure 175 psi@-20 Degrees to 150 Degrees F Saturated Steam Pressure 125 psi Outside Dia 16 In. Number of Holes 8 Temp Range -20 Degrees to 150 Degrees F Standards UL Listed FM Approved Meets ASME B16.4